Passive intrinsic-linewidth narrowing of ultraviolet extended-cavity diode laser by weak optical feedback
Optics
2015-08-14 v1
Abstract
We present a simple method for narrowing the intrinsic Lorentzian linewidth of a commercial ultraviolet grating extended-cavity diode laser (TOPTICA DL Pro) using weak optical feedback from a long external cavity. We achieve a suppression in frequency noise spectral density of 20 dB measured at frequencies around 1 MHz, corresponding to the narrowing of the intrinsic Lorentzian linewidth from 200 kHz to 2 kHz. The system is suitable for experiments requiring a tunable ultraviolet laser with narrow linewidth and low high-frequency noise, such as precision spectroscopy, optical clocks, and quantum information science experiments.
Keywords
Cite
@article{arxiv.1402.6379,
title = {Passive intrinsic-linewidth narrowing of ultraviolet extended-cavity diode laser by weak optical feedback},
author = {Polnop Samutpraphoot and Sophie Weber and Qian Lin and Dorian Gangloff and Alexei Bylinskii and Boris Braverman and Akio Kawasaki and Christoph Raab and Wilhelm Kaenders and Vladan Vuletić},
journal= {arXiv preprint arXiv:1402.6379},
year = {2015}
}
Comments
8 pages, 3 figures